<template>
  <div :class="prefixCls">
    <draggable
      tag="ul"
      :model-value="list"
      v-bind="{
        group: { name: 'form-draggable', pull: 'clone', put: false },
        sort: false,
        clone: cloneItem,
        animation: 180,
        ghostClass: 'moving',
      }"
      item-key="type"
      @start="handleStart($event, list)"
      @add="handleAdd"
    >
      <template #item="{ element, index }">
        <li
          class="bs-box text-ellipsis"
          @dragstart="$emit('add-attrs', list, index)"
          @click="$emit('handle-list-push', element)"
        >
          <!-- <svg v-if="element.icon.indexOf('icon-') > -1" class="icon" aria-hidden="true">
            <use :xlink:href="`#${element.icon}`" />
          </svg> -->
          <Icon :icon="element.icon" />
          {{ element.label }}
        </li></template
      >
    </draggable>
  </div>
</template>
<script lang="ts">
import { defineComponent, reactive, PropType } from "vue";
import { IVFormComponent } from "../../../typings/v-form-component";
import draggable from "vuedraggable";
import Icon from "@/components/Icon/Icon.vue";
import { useDesign } from "@/hooks/web/useDesign";

export default defineComponent({
  name: "CollapseItem",
  components: { draggable, Icon },
  props: {
    list: {
      type: [Array] as PropType<IVFormComponent[]>,
      default: () => [],
    },
    handleListPush: {
      type: Function,
      default: null,
    },
  },
  setup(props, { emit }) {
    const { prefixCls } = useDesign("form-design-collapse-item");

    const state = reactive({});
    const handleStart = (e: any, list1: IVFormComponent[]) => {
      emit("start", list1[e.oldIndex].component);
    };
    const handleAdd = (e: any) => {
      console.log(e);
    };
    // https://github.com/SortableJS/vue.draggable.next
    // https://github.com/SortableJS/vue.draggable.next/blob/master/example/components/custom-clone.vue
    const cloneItem = (one) => {
      return props.handleListPush(one);
    };
    return { prefixCls, state, handleStart, handleAdd, cloneItem };
  },
});
</script>

<style lang="less" scoped>
@prefix-cls: ~"@{namespace}-form-design-collapse-item";

@import url("../styles/variable.less");

.@{prefix-cls} {
  ul {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 0;
    padding: 5px;
    list-style: none;
    // background: #efefef;

    li {
      width: calc(50% - 6px);
      height: 36px;
      margin: 2.7px;
      padding: 8px 12px;
      transition: all 0.3s;
      border: 1px solid @border-color;
      border-radius: 3px;
      line-height: 20px;
      cursor: move;

      &:hover {
        position: relative;
        border: 1px solid @primary-color;
        // z-index: 1;
        box-shadow: 0 2px 6px @primary-color;
        color: @primary-color;
      }
    }
  }

  svg {
    display: inline !important;
  }
}
</style>
